CEIP Ginés Morata Almería

Equipo de bilingüismo Javier LG

4th GRADE MINIMUM CONTENTS

UNIT 7: PLANTS REPRODUCE

►FLOWERS:

Flowers are the most attractive part of a plant. The reproductive organs

of the plants are in the flowers. Flowers have

four main parts:

1. The calyx: This is made up of small green

leaves called sepals. Sepals protect the

flower.

2. The corolla. This is made up of colorful leaves

called petals.

3. The stamens. These are the male parts of the

flower. They produce pollen.

4. The pistil. This is the female part of the

flower. It is shaped like a bottle. It consists of the stigma, the style and

the ovary.

►POLLINATION

Pollination is the transfer of pollen from the stamens of one flower to

the stigma of another flower.

Animal pollination: some plants have very beautiful flowers with colorful

petals and sweet nectar. The petals and nectar attract insects. Then,

pollen sticks to their bodies. The insects carry the pollen from one flower

to another.

CEIP Ginés Morata Almería

Equipo de bilingüismo Javier LG

Wind pollination: Other plants are not attractive to insects,

but they have long stamens with a lot of pollen grains. The wind carries

the pollen of these plants to the stigmas of other flowers.

►FERILIZATION

1. After the pollen grains reach the stigma, the grains travel down the style

to the ovary. Inside the ovary,

pollen reaches the ovule and

then fertilization occurs.

2. The fertilized ovule grows into a

seed.

3. The flower starts to change, for example the petals fall off the flower. A

fruit forms. The seeds are inside the fruit.

►GERMINATION

When a seed lands on the ground, it can grow into a plant. This process

is called germination. A seed can germinate when the ground is wet and the

temperature is warm.

pistil

CEIP Ginés Morata Almería

Equipo de bilingüismo Javier LG

UNIT 7: PLANTS REPRODUCE ACTIVITIES

1.- Label the diagram of the flower. Then, copy and complete the text.

FLOWERS: Flowers have different parts. The __________are small green leaves that form the _________. The ___________ are coloured leaves which form the __________. The _________ are the male parts of the flower and produce __________. The __________ is the female part of the flower. The flower becomes the ___________ which contains seeds.

2.-Write wind or insect pollination

_____________ ____________ _____________ _____________ _____________ ____________ _____________ _____________

Explain the difference between plants that use wind pollination and plants that use insect pollination ________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

fruit sepals pistil petals calyx corolla stamens pollen

CEIP Ginés Morata Almería

Equipo de bilingüismo Javier LG

3.-Unscramble the letters. Label the diagram with the

correct words.

4.- Look at the pictures. Use them to put the sentences in order.

____ The seed germinates and a little plant starts to grow.

____ There are seeds inside the fruit.

____ A seed falls to the ground and absorbs water.

____ The flower starts to change and a fruit forms.

____ Pollen reaches the stigma of a flower.

5.-Complete your bilingual dictionary.

PLANTS R E P R O D U C E

- Calyx:_____________

- Sepal: _____________

-Corolla: ____________

-Stamen:____________

- Pistil:_____________

- Stigma: ___________

- Ovary:_________________

- Ovule: _________________

- Seed: _________________

- Male part: _____________

- Female part:____________

- Carry out: ______________

- Grow into a seed____________________________

- … is made up of … ____________________________ - Fetiliz _____________________ - Germinate___________________

CEIP Ginés Morata Almería

Equipo de bilingüismo Javier LG